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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.deploy;
import com.google.common.collect.ImmutableSet;
import com.yahoo.component.Version;
import com.yahoo.config.application.api.ApplicationMetaData;
import com.yahoo.config.application.api.ApplicationPackage;
import com.yahoo.config.application.api.DeployLogger;
import com.yahoo.config.application.api.FileRegistry;
import com.yahoo.config.model.application.provider.BaseDeployLogger;
import com.yahoo.config.model.application.provider.DeployData;
import com.yahoo.config.model.application.provider.FilesApplicationPackage;
import com.yahoo.config.model.application.provider.MockFileRegistry;
import com.yahoo.config.provision.AllocatedHosts;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.HostSpec;
import com.yahoo.io.IOUtils;
import com.yahoo.path.Path;
import com.yahoo.text.Utf8;
import com.yahoo.vespa.config.server.zookeeper.ZKApplicationPackage;
import com.yahoo.vespa.curator.Curator;
import com.yahoo.vespa.curator.mock.MockCurator;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.logging.Level;
import static com.yahoo.config.provision.serialization.AllocatedHostsSerializer.fromJson;
import static com.yahoo.vespa.config.server.session.SessionZooKeeperClient.getSessionPath;
import static com.yahoo.vespa.config.server.zookeeper.ZKApplication.DEFCONFIGS_ZK_SUBPATH;
import static com.yahoo.vespa.config.server.zookeeper.ZKApplication.META_ZK_PATH;
import static com.yahoo.vespa.config.server.zookeeper.ZKApplication.USERAPP_ZK_SUBPATH;
import static com.yahoo.vespa.config.server.zookeeper.ZKApplication.USER_DEFCONFIGS_ZK_SUBPATH;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author Ulf Lilleengen
*/
public class ZooKeeperDeployerTest {
private Curator zk;
private final Path appPath = Path.fromString("/1");
@Rule
public TemporaryFolder folder = new TemporaryFolder();
private static final String defFile = "test2.def";
@Before
public void setupZK() throws IOException {
zk = new MockCurator();
ZooKeeperDeployer.Client zkc = new ZooKeeperDeployer.Client(zk, new BaseDeployLogger(), appPath);
ApplicationPackage app = FilesApplicationPackage.fromFileWithDeployData(new File("src/test/apps/zkfeed"),
new DeployData("/bar/baz",
ApplicationId.from("default", "appName", "default"),
1345L,
true,
3L,
2L));
Map<Version, FileRegistry> fileRegistries = createFileRegistries();
app.writeMetaData();
zkc.initialize();
zkc.writeApplicationPackage(app);
zkc.write(fileRegistries);
}
@Test
public void require_that_deployer_is_initialized() throws IOException {
Curator curator = new MockCurator();
File serverdbDir = folder.newFolder("serverdb");
File defsDir = new File(serverdbDir, "serverdefs");
try {
IOUtils.createWriter(new File(defsDir, defFile), true);
} catch (IOException e) {
e.printStackTrace();
fail();
}
deploy(FilesApplicationPackage.fromFile(new File("src/test/apps/content")), curator, 1);
deploy(FilesApplicationPackage.fromFile(new File("src/test/apps/content")), curator, 2);
}
private Map<Version, FileRegistry> createFileRegistries() {
FileRegistry a = new MockFileRegistry();
a.addFile("fileA");
FileRegistry b = new MockFileRegistry();
b.addFile("fileB");
Map<Version, FileRegistry> registryMap = new HashMap<>();
registryMap.put(new Version(1, 2, 3), a);
registryMap.put(new Version(3, 2, 1), b);
return registryMap;
}
@Test
public void testInitZooKeeper() {
Curator zk = new MockCurator();
BaseDeployLogger logger = new BaseDeployLogger();
long generation = 1L;
ZooKeeperDeployer.Client client = new ZooKeeperDeployer.Client(zk, logger, Path.fromString("/1"));
client.initialize();
Path appPath = Path.fromString("/");
assertEquals(1, zk.getChildren(appPath).size());
Path currentAppPath = appPath.append(String.valueOf(generation));
assertTrue(zk.exists(currentAppPath));
assertTrue(zk.exists(currentAppPath.append(DEFCONFIGS_ZK_SUBPATH.replaceFirst("/", ""))));
assertEquals(4, zk.getChildren(currentAppPath).size());
}
@Test
public void testFeedDefFilesToZooKeeper() {
Path defsPath = appPath.append(DEFCONFIGS_ZK_SUBPATH);
assertTrue(zk.exists(appPath.append(DEFCONFIGS_ZK_SUBPATH.replaceFirst("/", ""))));
List<String> children = zk.getChildren(defsPath);
assertEquals(defsPath + " children", 1, children.size());
Collections.sort(children);
assertEquals("a.b.test2", children.get(0));
assertTrue(zk.exists(appPath.append(USER_DEFCONFIGS_ZK_SUBPATH.replaceFirst("/", ""))));
Path userDefsPath = appPath.append(USER_DEFCONFIGS_ZK_SUBPATH);
children = zk.getChildren(userDefsPath);
assertEquals(1, children.size());
Collections.sort(children);
assertEquals("a.b.test2", children.get(0));
}
@Test
public void testFeedAppMetaDataToZooKeeper() {
assertTrue(zk.exists(appPath.append(META_ZK_PATH)));
ApplicationMetaData metaData = ApplicationMetaData.fromJsonString(
Utf8.toString(zk.getData(appPath.append(META_ZK_PATH)).get()));
assertTrue(metaData.getChecksum().length() > 0);
assertTrue(metaData.isInternalRedeploy());
assertEquals("/bar/baz", metaData.getDeployPath());
assertEquals(1345, metaData.getDeployTimestamp().longValue());
assertEquals(3, metaData.getGeneration().longValue());
assertEquals(2, metaData.getPreviousActiveGeneration());
}
@Test
public void testVersionedFileRegistry() {
Path fileRegPath = appPath.append(ZKApplicationPackage.fileRegistryNode);
assertTrue(zk.exists(fileRegPath));
assertTrue(zk.exists(fileRegPath.append("/1.2.3")));
assertTrue(zk.exists(fileRegPath.append("/3.2.1")));
// assertNull("Data at " + fileRegPath, zk.getData(fileRegPath)); Not null any more .. hm
}
@Test
public void include_dirs_are_written_to_ZK() {
assertTrue(zk.exists(appPath.append(USERAPP_ZK_SUBPATH).append("dir1").append("default.xml")));
assertTrue(zk.exists(appPath.append(USERAPP_ZK_SUBPATH).append("nested").append("dir2").append("chain2.xml")));
assertTrue(zk.exists(appPath.append(USERAPP_ZK_SUBPATH).append("nested").append("dir2").append("chain3.xml")));
}
@Test
public void search_chain_dir_written_to_ZK() {
assertTrue(zk.exists(appPath().append("search").append("chains").append("dir1").append("default.xml")));
assertTrue(zk.exists(appPath().append("search").append("chains").append("dir2").append("chain2.xml")));
assertTrue(zk.exists(appPath().append("search").append("chains").append("dir2").append("chain3.xml")));
}
private Path appPath() {
return appPath.append(USERAPP_ZK_SUBPATH);
}
@Test
public void testWritingHostNamesToZooKeeper() throws IOException {
Curator zk = new MockCurator();
BaseDeployLogger logger = new BaseDeployLogger();
Path app = Path.fromString("/1");
ZooKeeperDeployer.Client client = new ZooKeeperDeployer.Client(zk, logger, app);
client.initialize();
HostSpec host1 = new HostSpec("host1.yahoo.com", Optional.empty());
HostSpec host2 = new HostSpec("host2.yahoo.com", Optional.empty());
ImmutableSet<HostSpec> hosts = ImmutableSet.of(host1, host2);
client.write(AllocatedHosts.withHosts(hosts));
Path hostsPath = app.append(ZKApplicationPackage.allocatedHostsNode);
assertTrue(zk.exists(hostsPath));
AllocatedHosts deserialized = fromJson(zk.getData(hostsPath).get());
assertEquals(hosts, deserialized.getHosts());
}
public void deploy(ApplicationPackage applicationPackage, Curator curator, long sessionId) throws IOException {
ZooKeeperDeployer deployer = new ZooKeeperDeployer(curator, new MockDeployLogger(), applicationPackage.getApplicationId(), sessionId);
deployer.deploy(applicationPackage, Map.of(new Version(1, 0, 0), new MockFileRegistry()), AllocatedHosts.withHosts(Set.of()));
Path sessionPath = getSessionPath(applicationPackage.getApplicationId().tenant(), sessionId);
assertTrue(curator.exists(sessionPath));
}
private static class MockDeployLogger implements DeployLogger {
@Override
public void log(Level level, String message) { }
}
}
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